Foueths to nathas crosby



(No Model.)

' 0. L. INGALLS.

Press. v I

v Patented Feb. 8,1881.

NITED STATES ATENT I Fr cE.

CHARLES L. INGALLS, OF LOWELL, MASSACHUSETTS, ASSIGNOR OF THREE- FOURTHS TO NATHAN OROSBY,JOSEPH A. OORAM, AND FRANK Gr. SAR- GENT, ALL OF SAME PLACE, ONE-FOURTH TO EACH.

PRESS.

SPECIFICATION forming ast of Letters Patent No. 237,537, dated February 8, 1881. Application fi ed December 27, 1880. (No model.)

To all whom it may concern.

Be it known that .I, CHARLES L. INGALLS, of Lowell, in the county of Middlesex and Common wealth of Massach usetts, have in vent- ,5 ed certain new and usefullmprovements in Presses for Pressing and Stamping Soap and Materials of Similar'Oonsistency, of which the following is a specification.

My invention consists in a press provided with an automatic knocking-off device; also,

in the combination of a rocking shaft provided with arms, a connecting-rod, a lever provided with a projection, and a cam and mechanism for rotating the same; also,in the comhination of the lower stamp and mechanism for lifting the same, with the bent knocking-off lever and mechanism for oscillating the same, all as and for the purposes hereinafter specified.

In the accompanying drawings, Figure 1 is an isometric view of a press provided with my improvements. Fig. 2 is an elevation of the upper lever provided with a projection, and of the cam which actuates said lever. Fig. 3 is a side elevation of the stamps and mechanism for lifting the lower stamp, and of the best form of the knocking-off lever, connecting-rod, and spring.

A is the frame of the press. B is the main o shaft, rotated by power applied to the pulley O and by gears D'D, causing the shaft B and its eccentric E to revolve. The revolution of the eccentric E gives to the cross-head F, to which it is connected by the strap E and rod 3 5 G, a vertical reciprocating motion on the guide- To the cross-head F, below the same, is secured a stamp, I, which presses the soap down into a mold, K, cutin the table L, the

40 bottom of the mold being another stamp, l, fixed upon the top of an upright rod, J, and guided by the mold, (which it never entirely leaves,) and by the piece J, through which the lower end of said rod J passes. The lower end of the rod J rests upon a very stout spring,

J to allow the lower stamp, I, to yield slightly to avoid the shock of the upper stamp, I, de-

scending suddenly upon the material in the mold and forcing said material violentlyagainst the lower stamp.

The machine, as represented in Fig. 1, is in a position to receive a lump or bar of soap, which is placed over the mold. The stamp I then descending forces the soap into the mold and upon the lowerstamp, I, filling the mold, and thus shaping the sides and ends oflthe bar, the stamps l l, respectively, finishing the top and bottom ot the bar and impressing upon said bar such ornamental or advertising figures-or devices as may be engraved upon said stamps.

The next step is to remove the stamped bar from the mold. A post, M, provided with a cam or projection, M, is secured in a nearlyvertical position to the floor, or to the bed-piece A of the machine, and a spring hook, N, is at tached by its upper end to the cross-head F, and descends with said cross-head, in the operation of pressing the soap, until thelower hooked end of said hookN is below a projection, O, on the rod J, and springs forward under said projection O, (the hook and the projection being beveled to allow said hook to pass. below said projection, as shown in Fig. 3,) so that when, by the further revolution of the eccen- 7 tric E, the upper stamp, I, rises entirely clear. of the mold K, the lower stamp, 1, begins to rise and rises (being lifted by the hook N and projection 0) until its face is even with the top of the mold K, when the hook N is disengaged from the projection O by a pin on its side sliding over the projection M, and the stamp 1 drops of its own weight. The stamp ed bar must beremoved from. the top of the mold before said bar has time to drop back 8 into the mold.

To remove'the stamped bar from the top of the mold, to make room for an unstamped.

bar, an automatic knocking-oft device is provided. This consists, in-effeot, of a bell-crank or bent lever, being a rocking shaft, P, turningin suitable bearings Q on the frame A, or on the floor of the building, and provided with an arm, P, which is pivoted to the connecting-rod R, and another arm, P, Fig. 3, so bent as to reach over the table L when the arm P is lifted. (See dotted lines in Fig. 3.)

The connecting-rod R is pivoted at its upper end to a lever, S, the fulcrum S of which is on the top of the frame A, which lever S has immediately over the shaft B a downward projection, S The shaft B, immediately under the projection S has acam, B ,which, once in every revolution of said shaft, raises the free end of said lever S, and by the connecting-rod R raises the arm P, rocking the shaft Pand suddenly throwing forward the bent upper end of the arm P over the table, and knocking oii' any bar that may be at the top of the mold. The cam is so placed on the shaft B that the knocking off is done just as the stamped bar is raised out of the mold.

The connecting-rod R runs in a guide, T, secured to theframenearthelowerendofsaidrod, and a spiral spring, T, surrounding the connecting-rod,is compressed between the arm P and said guide by lifting said rod R, and suddenly throws down the arm P and draws back the arm P when the cam B passes the projection S The shape of the cam B and of the projection S are such as to allow of a very rapid movement of the arm P in both directions, as appears from Fig.2.

Substantially the same knocking-off device as that above described is shown in Fig. 1, the

difference being that, instead of the upper end of the knocking-01f arm being bent, as shown at P in Fig. 3, said arm P in Fig. 1 is carried up through a slotted horizontal shaft, P parallel to the rocking shaft P, and this shaft P turns in brackets P secured to the top of the slide P and moves said slide endwise in guides P fixed on the table L and on the frame A of the machine, the front end of the slide knocking off the stamped bars.

I claim as my invention 1. A press provided with an automatic knoeking-ofi' device, as and for the purpose specified.

'2. The combination of the rocking-shaft P, provided with arms P P, the connecting-rod R, the lever S, provided with the projection S and the cam B and mechanism for rotating the same, as and for the purpose specified.

3. The combination of the stamp l, and mechanism for lifting the same, with the bent knocking-off lever P P, and mechanism for oscillating the same, as and for purpose specified.

4. The combination of the stamp I, the rod J, and the spring J, as and for the purpose specified.

CHARLES L. INGALLS.

Witnesses:

ALBERT M. MOORE, J OSEPI-I A. CORAM. 

